{ 1/x+1/y=1/6 5x-y=9

Question

{ 1/x+1/y=1/6
5x-y=9

Answer 1

{у=5х-9
1/х+1/5х-9=1/6
30х-54+6х-5х^2+54=0
5х^2-36х=0
х(5х-36)=0
х=0 или 5х-36=0
х=7,2
Ответ:0;7,2